I am using Crypto library of Node.js for encryption/decryption as follows :
我使用Node.js的Crypto库进行加密/解密，如下所示：
encrypt = function(text, passPhrase){
var cipher = crypto.createCipher('AES-128-CBC-HMAC-SHA1', passPhrase);
var crypted = cipher.update(text,'utf8','hex');
crypted += cipher.final('hex');
return crypted;
} ,
decrypt = function(text, passPhrase){
var decipher = crypto.createDecipher('AES-128-CBC-HMAC-SHA1', passPhrase)
var dec = decipher.update(text,'hex','utf8')
dec += decipher.final('utf8');
return dec;
}
There is no problem with encryption part. and if I send the correct passPhrase for decryption there is also no problem. My problem is,if I send 'wrong' passPhrase for decryption, code breaks and throw an error :
加密部分没有问题。如果我发送正确的passPhrase进行解密，也没有问题。我的问题是，如果我发送'错误'的passPhrase进行解密，代码中断并抛出错误：
TypeError: Bad input string
at Decipher.Cipher.update (crypto.js:279:27)
at module.exports.decrypt (/xxxx/yyyyy/jjj/ssss/encryptionService.js:19:28)
at Object.module.exports.passwordDecryptor (/xxxx/yyyyy/jjj/ssss/encryptionService.js:59:56)
at Object.<anonymous> (/xxxx/yyyyy/jjj/ssss/test.js:32:33)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
I dont want it happen. I want for example decrypt function returns 'Passpharse is wrong' sentence. According to the documentation enter link description here createDecipher function doesn't accept a callback function.
我不希望它发生。我希望例如decrypt函数返回'Passpharse is wrong'句子。根据文档输入链接描述，这里createDecipher函数不接受回调函数。
1 个解决方案
#1
10
I solved the problem with try and catch. (The callback function doesn't work.)
我用try和catch解决了这个问题。 （回调函数不起作用。）
decrypt = function(text, passPhrase){
var decipher = crypto.createDecipher('AES-128-CBC-HMAC-SHA1', passPhrase);
try {
var dec = decipher.update(text,'hex','utf8');
dec += decipher.final('utf8');
return dec;
} catch (ex) {
console.log('failed');
return;
}
}
#1
10
I solved the problem with try and catch. (The callback function doesn't work.)
我用try和catch解决了这个问题。 （回调函数不起作用。）
decrypt = function(text, passPhrase){
var decipher = crypto.createDecipher('AES-128-CBC-HMAC-SHA1', passPhrase);
try {
var dec = decipher.update(text,'hex','utf8');
dec += decipher.final('utf8');
return dec;
} catch (ex) {
console.log('failed');
return;
}
}